S4 E1 • Silent Witness

Première diffusion : 13 juillet 2018

S4 E2 • Suspicion

Première diffusion : 20 juillet 2018

S4 E3 • Buried Secrets

Première diffusion : 27 juillet 2018

S4 E4 • Who Killed the Radio Star

Première diffusion : 3 août 2018

S4 E5 • Deadly Conspiracy

Jack Jessee was a family man who didn't seem to have an enemy in the world, up until the night he was killed; the case goes cold but a relentless detective is determined to catch Jack's killer.

Première diffusion : 10 août 2018

S4 E6 • The Confession

Soon after Angie Dodge's murder, Christopher Tapp admits he is one of her killers; police capture his confession on videotape, but the victim's mom, who once campaigned to put Tapp in prison, fights for his freedom.

Première diffusion : 17 août 2018

S4 E7 • Poison

Larry McNabney has a thriving career and a wife he adores, but then vanishes; at the center of the twisted mystery, three lives tangle together in a love triangle, including one who hides a secret identity.

Première diffusion : 24 août 2018

S4 E8 • Written in Blood

When Karen Pannell is found stabbed to death, a message scrawled in blood seems like a beacon that could lead detectives to her killer; it takes a dogged forensic specialist with a keen eye to unravel the mystery.

Première diffusion : 31 août 2018

S4 E9 • The Night Lynsie Disappeared

It was a mystery that stumped investigators for years; a college student disappears after a night out clubbing; her mother thought she was at a sleepover with friends and it takes an eagle-eyed detective to find the truth buried in a pile of lies.

Première diffusion : 7 septembre 2018

S4 E10 • Secrets in the Mist

A young mom, married to her high school sweetheart, vanishes; did she leave her family to start a new life or was there another reason for her disappearance; decades later her grown son faces a dark truth at the core of this mystery.

Première diffusion : 14 septembre 2018

S4 E11 • Secrets in the Snow

She was a dancer who married a dashing photographer; they seemed to have the picture-perfect life -- until the bone-chilling night she disappeared; in a case filled with twists, could the victim help solve her own murder.

Première diffusion : 21 septembre 2018

S4 E12 • The Night Hannah Hill Disappeared

A former homecoming queen taking her first steps into adult life is brutally murdered; the investigation centers on two men and a mysterious black bag that seems to come out of nowhere.

Première diffusion : 28 septembre 2018

S4 E13 • While They Were Sleeping

It was a brutal and baffling crime: a husband shot dead in his own bed; no one else in the house was hurt, not even his wife, who was sleeping beside him; investigators were suspicious, but there were more surprises in store.

Première diffusion : 5 octobre 2018

S4 E14 • The Devil and Bobbi Parker

It's a mystery with a mind-boggling twist; the deputy warden's wife claimed she was kidnapped by an escaped convict and held captive for more than a decade; but was she really a hostage or a willing accomplice.

Première diffusion : 12 octobre 2018

S4 E15 • The Inside Man

A convict is offered a deal as tempting as it is dangerous; he must go undercover in a psychiatric hospital to get information from a suspected serial killer in order to win his freedom, but there's no guarantee he'll get out alive.

Première diffusion : 19 octobre 2018

S4 E16 • Family Affair

When the wealthy heir to a legendary hotel is murdered, the list of possible suspects is long; he had his share of enemies, and a complicated family; investigators soon learned someone close to the victim was also in danger.

Première diffusion : 26 octobre 2018

S4 E17 • The Plot Thickens

It's a true Hollywood whodunit; a show business stuntman is shot four times and left to die; investigators uncover a love story gone wrong and a villain with a dark secret; the most stunning twist of all is what didn't happen.

Première diffusion : 2 novembre 2018